"Miniatures Pendant Piano Frame 1918 Gustave Helinck"
We say piano frame because these bronze frames can be hung but also placed... But you need to have a piano... In short, these are two superb miniatures painted on ivory signed G.Helinck (1884-1954) dated 1918 I think it is a mother and her soldier son, rather than a couple. Or perhaps relatives of the painter? who knows... 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato